html,body{
    width:100%;
    height:100%;
    overflow: hidden;
}

body{
    background: url("../images/login-bg.jpg");
    background-position: center 0;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
    -webkit-background-size: cover;
    -o-background-size: cover;
    -moz-background-size: cover;
    -ms-background-size: cover;
}

.indexbtn{
    font-size: 1rem;
    padding: .5rem 1.5rem;
    display: inline-block;
    border: 2px solid currentColor;
    min-width: 120px;
    text-align: center;
}


.loginform{
    /* 设置圆角的半径是10px */
    border-radius:10px;
    /* 相对定位 */
    position:relative;
    left:50%;
    top:45%;
    transform: translateX(-50%) translateY(-50%);

    background: url("../images/loginform-bg.png");
    
}

.vcode{
    height: 37px;
}
